| Norton Barnhill | |
| Birth Date: | 15 July 1953 |
| Birth Place: | Winston-Salem, North Carolina |
| Nationality: | American |
| Height Ft: | 6 |
| Height In: | 4 |
| Weight Lb: | 205 |
| High School: | West Forsyth (Clemmons, North Carolina) |
| College: | Washington State (1973–1976) |
| Draft Year: | 1976 |
| Draft Round: | 8 |
| Draft Pick: | 134 |
| Draft Team: | Seattle SuperSonics |
| Position: | Shooting guard |
| Number: | 10 |
| Years1: | 1976 |
| Team1: | Seattle SuperSonics |
| Years2: | 1977–1978 |
| Team2: | Anchorage Northern Knights |
Norton Barnhill (born July 15, 1953) is a retired American basketball player. Barnhill was a shooting guard, he played collegiately for Washington State University.
Barnhill played for the Seattle SuperSonics in the NBA for four games during the 1976–77 season. He later played professionally for the Anchorage Northern Knights.